Random dweets | Dwitter

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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katkip

function u(t) {

if(!t){d=[];for(i=29;i--;)d.push({s:t,q:C(i*i)})};
for(i of d)x.fillRect(t*200,S(i.s+i.q/(.4+t*t/5)+t)*200+540,4,4)

Dec 31 2019 10:49 AM UTC

}// 115/140

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faster sync algorithm

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larzuk

function u(t) {

w=1920;c.width=w;k=30,g=w/k<<0;for(i=0;i<g*1080/k;i++){j=i%g,h=i/g<<0,m=h^j*S(t+j)*C(t+h)<<2;x.fillStyle=R(0,m,m);x.fillRect(j*k,h*k,k,k);}

Oct 9 2019 10:44 PM UTC

}// 139/140

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CyberChecks

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metamero

remix of d/888 by u/jczimm

function u(t) {

c.width^=3330;
for(i=0;i<300;i++)
  for(j=0;j<6;j++)
    x.fillRect(960+800*C(i)*C(T(t/5.1)+j/i),540+400*S(i*2),10,10)

Nov 14 2018 12:11 PM UTC

}// 118/140

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pavel

function u(t) {

for(c.width=i=300;j=--i>>1;x.fillText('⚫⚪'[k],29*j-8*s,84+(k*25-1)*Math.tanh(5*S(a))))k=i&1^C(a=j/3-2*t)>0,x.font=(s=1+C(k*a/2)**2)*12+'px"'

Nov 23 2018 8:40 AM UTC

}// 140/140

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Twister #beesandbombs

u/pavel

Getting the white to go over the front but behind the back is so hard! Had to use emojis to save bytes but its janky on some devices.

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function u(t) {

c.width=600;for(i=0,f=100,a=0;i<200;i++,x.fillStyle=R(i+S(i)*20),a=i+(t*50))x.fillRect(f+f/2+i+C(a/20)*f,f+S(a/50)*f,S(i/64)*f,S(i/64)*f);

Apr 5 2018 12:48 AM UTC

}// 138/140

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taupelink

remix of d/23714 by u/taupelink

function u(t) {

for(i=k=630;--i;x.fillRect(X-k,k-i/Y,-Y*i/v,-q*Y/v))f=i*t,X=f*f%3e3,Y=X*f%9-4,x.fillStyle=R(q=i*Y,q*=S(k/X)*(.7-Y/6),i%q,1e7/X/q/q),v=4**t

Sep 2 2021 2:32 AM UTC

}// 138/140

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d/23724

u/Xen

love it!
u/rep_movsd

Gets better and better
u/tomxor

wow
u/aleamb

beautiful! #impressionism

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DaSpider

remix of d/16502 by u/DaSpider

function u(t) {

eval(unescape(escape(`琿漮癡汵攫㵓瑲楮朮晲潭䍯摥偯楮琨㜷㠲㐫䵡瑨⹲慮摯洨⤪㄰㜱簰⤺挮潵瑥版呍䰽✼瑥硴慲敡⁩搽漠牯睳㴸〠捯汳㴹㤠獴祬攽≦潮琭獩穥㨲敭㬢㸼⽴數瑡牥愾✠`).replace(/u(..)/g,"$1%")))

Nov 4 2019 10:27 AM UTC

}// 120/140

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Hieroglyphs...

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danieldan0

remix of d/22597 by u/pernicious

function u(t) {

x.fillRect(212*t,200*S(t)+200,244+S(t)*99,199+C(t)*99);x.fillStyle=`hsla(${999*360/S(t)},69%,50%,0.01)`

Apr 23 2021 4:06 AM UTC

}// 103/140

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donbright

remix of d/2839 by u/alien

function u(t) {

w=c.width=115
for(j=w;j--;)
for(i=w;i--;)q=2*i*j*S(t)+C(t)*(i**2+j**2),x.fillStyle=R(s=(q*q*frame>>t)%255,s,s*3),x.fillRect(i,j,1,1)

Jul 10 2017 3:22 AM UTC

}// 132/140

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remixing @alien color + code with some of my old binary quadratic forms stuff (aka circles and squares pseudo fractals)

u/cantelope

cool donbright
u/donbright

thx cantelope

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quidnovum

remix of d/888 by u/jczimm

function u(t) {

c.width^=0;d=0.15;r=4;for(i=-r;i<r;i+=d)for(j=-r;j<r;j+=d){a=[i,j,C(i+t)+S(j+t)];x.fillRect(960+150*(C(0)*a[0]+S(t)*a[1]),540-150*a[2],7,7)}

Mar 2 2017 7:09 PM UTC

}// 140/140

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u/sfz

such a cool effect!